WO1997047884A2 - Appareil d'alimentation d'un dispositif en liquide pressurise, et moteur/generateur correspondant refroidi par flux grande vitesse - Google Patents

Appareil d'alimentation d'un dispositif en liquide pressurise, et moteur/generateur correspondant refroidi par flux grande vitesse Download PDF

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Publication number
WO1997047884A2
WO1997047884A2 PCT/US1997/008898 US9708898W WO9747884A2 WO 1997047884 A2 WO1997047884 A2 WO 1997047884A2 US 9708898 W US9708898 W US 9708898W WO 9747884 A2 WO9747884 A2 WO 9747884A2
Authority
WO
WIPO (PCT)
Prior art keywords
motor
pump
rotor
liquid
machine
Prior art date
Application number
PCT/US1997/008898
Other languages
English (en)
Other versions
WO1997047884A3 (fr
Inventor
Madan L. Bansal
William Durtschi
Scott Thomson
Original Assignee
Sundstrand Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sundstrand Corporation filed Critical Sundstrand Corporation
Priority to JP50161998A priority Critical patent/JP2001516414A/ja
Priority to EP97927757A priority patent/EP0904491A2/fr
Publication of WO1997047884A2 publication Critical patent/WO1997047884A2/fr
Publication of WO1997047884A3 publication Critical patent/WO1997047884A3/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/08—Combinations of two or more pumps the pumps being of different types
    • F04B23/10—Combinations of two or more pumps the pumps being of different types at least one pump being of the reciprocating positive-displacement type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/08—Combinations of two or more pumps the pumps being of different types
    • F04B23/14—Combinations of two or more pumps the pumps being of different types at least one pump being of the non-positive-displacement type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/08—Cooling; Heating; Preventing freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/005—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of dissimilar working principle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0096—Heating; Cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/12—Combinations of two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/04—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for rectification
    • H02K11/049—Rectifiers associated with stationary parts, e.g. stator cores
    • H02K11/05—Rectifiers associated with casings, enclosures or brackets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
    • H02K2205/12—Machines characterised by means for reducing windage losses or windage noise
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans

Definitions

  • the present invention relates to an improved apparatus for providing
  • induction motors are used to drive hydraulic pumps for
  • rotor of the motor has to be relatively small, less than 0.1 inch, and typically .03-
  • An object of the present invention is to provide an improved apparatus for
  • apparatus of the invention for providing a large volume of pressurized liquid to a
  • the apparatus comprises a pump for pumping a liquid, a high speed flood
  • the motor as a variable speed motor.
  • a permanent magnet dynamoelectric machine is used for better efficiency
  • the motor includes a stator and a rotor with an airgap
  • the permanent magnet motor
  • the motor is flood cooled by the liquid being pumped to reduce
  • the motor are not impregnated to allow the liquid to flow through slots in the
  • the motor can operate at relatively high current densities.
  • the rotor of the apparatus comprises a hollow rotor shaft formed of at least two
  • Supports are also provided on both sides of end turns of the stator windings in the
  • the axial piston pump it is limited to relatively low speeds, as compared with the
  • the dynamoelectric machine of the apparatus as an electrical generator as a back
  • diameter to length is optimized for minimum weight and hydraulic friction losses.
  • Fig. 1 is a schematic diagram of an apparatus according to the invention for
  • FIG. 2 is a cross sectional view of the apparatus of Fig. 3 taken along the
  • Fig. 3 is a cross sectional view of the apparatus of Fig. 1 taken along a
  • Figs. 4 and 5 are each an enlarged views of sections of the apparatus of Fig.
  • Fig. 6. is an enlarged cross sectional view of the apparatus of Figs. 1 and
  • Fig. 7 is a cross sectional view taken along the line VII-VII in Fig. 3;
  • Fig. 8 is an enlarged view of a slot in the stator armature with stator
  • Fig. 9 is a cross sectional view taken along the line IX-IX in Fig. 3;
  • Fig. 10 is a cross sectional view of the apparatus of Fig. 3 taken along the
  • Fig. 1 1 is a cross sectional view of the apparatus of Fig. 3 taken along the
  • Fig. 12 is a sectional line taken along the line XII-XII in Fig. 3 illustrating the
  • FIG. 1 The apparatus 1
  • centrifugal pump 71 to supply charge to an axial piston pump 2 and
  • the axial piston pump 2 is for supplying high pressure liquid
  • the gear pump 4 reduces the motor speed to drive the pumps and
  • the apparatus 1 further includes a
  • impeller 6 is located upstream of the axial piston pump 2 in the apparatus.
  • passages 7 are provided in the apparatus for circulating a portion of the liquid
  • the apparatus 1 includes no
  • the apparatus 1 is shown in
  • the motor 3 of the apparatus 1 is a brushless DC motor adapted to be
  • liquid-cooled power electronics including an inverter and a controller for
  • FIG. 3 schematically in Fig. 3, conveys liquid coolant through the control 5 from an inlet 9 to an outlet 10.
  • the control 5 is connected to the housing 1 1 of the motor 3 by
  • annular chamber 12 of the motor 3 adjacent the right end of the stator 13 of the
  • the dynamoelectric machine 3 which normally operates as a motor for
  • gear pump 4 can also be operated as a generator to provide a backup electrical
  • the axial piston pump 2 is
  • the pump 2 for operation as a hydraulic motor to drive the rotor 1 8 of machine 3
  • the motor 3 is a high speed permanent magnet motor adapted to be flood
  • the liquid coolant exits the motor through an outlet 19 in motor 3.
  • Cooling the drive 4 and control 5 before the motor 3 advantageously warms the motor 3
  • the motor housing 1 1 surrounds the stator 1 3 and rotor 1 8 of the motor.
  • stator and rotor are separated by an unusually large airgap, preferably
  • the stator 13 of the motor 3 within housing 1 1 includes an armature 21
  • stator windings extend from opposite ends of the armature as depicted in
  • a cylindrical rotor receiving opening 25 extends through the stator along
  • stator windings 23 in the slots 22, while insulated, are not impregnated
  • An insulation material 34 is located about the supports
  • the insulation material 34 has a high
  • liquid for example.
  • One suitable material for insulation 34 is known by the tradename Ryton.
  • the radially inward surface of the annular stator is formed by thin metal sleeve 49
  • the rotor 18 of the motor includes a plurality of permanent magnets 50, see
  • the magnets 50 are supported on a hollow rotor shaft 51 formed
  • the rotor extending through the rotor receiving opening 25 of the stator.
  • the outer surface of the rotor is formed by a metal sleeve 55 which is spaced from the
  • circulating the liquid coolant include the airgap 56 through which the liquid coolant
  • the metal sleeve 55 and an end plate 57 of the rotor are welded to the
  • the length to diameter ratio of the motor 3 is preferably on the order of 2: 1 for
  • the inverter of the control 5 and the motor 3 have a power rating of 80 KVA.
  • the brushless permanent magnet machine generates a
  • the diameter of the motor can also be
  • liquid coolant through the flood cooled motor 2 in the disclosed embodiment may
  • the circulating liquid also provides lubrication to the
  • actuator 59 of an airplane shown schematically in Fig. 3, is taken in an inlet 58
  • the gears 64 and 65 provide both the drive between the axial piston
  • a pressure relief valve shown
  • the pump 2 is pressure compensated and takes
  • the pressurized liquid exits the pump 2 by way of pump outlet 70 and
  • Typical operating conditions for the apparatus 1 include driving the rotor 18
  • the drive 4 is a power
  • Hydraulic liquid at the inlet 58 of the pump housing is at a relatively
  • the motor 3 can be operated at a relatively high current density such that the efficiency of the

Abstract

La présente invention concerne un appareil alimentant en fluide pressurisé un dispositif équipant aéronef. Ce fluide pressurisé est destiné à fournir sous forme hydraulique la force motrice du dispositif embarqué sur l'aéronef. L'appareil de l'invention comprend: d'une part une pompe de pompage de liquide; d'autre part un moteur à aimant permanent, à refroidissement par un flux grande vitesse lequel moteur sert à entraîner la pompe; ensuite un entraînement entre le moteur et la pompe pour permettre au moteur d'actionner la pompe; et enfin un régulateur faisant fonctionner le moteur comme un moteur à régime variable. La pompe, le moteur, l'entraînement et le régulateur sont intégrés en une seule unité. Les passages de fluides ménagés dans l'unité permettent au liquide pompé grâce à la force motrice de l'entraînement de circuler dans le corps de pompe, dans le régulateur et dans le moteur afin de les refroidir. Le moteur se compose d'un stator et d'un rotor entre lesquels un espace libre d'au moins 0,1 pouce permet de réduire les pertes imputables à la friction hydraulique se produisant à l'intérieur du moteur, sans augmenter de façon notable les dimensions du moteur.
PCT/US1997/008898 1996-06-14 1997-05-23 Appareil d'alimentation d'un dispositif en liquide pressurise, et moteur/generateur correspondant refroidi par flux grande vitesse WO1997047884A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP50161998A JP2001516414A (ja) 1996-06-14 1997-05-23 機器に加圧液体を供給するための装置、そのための高速張水冷却式モータ／発電機
EP97927757A EP0904491A2 (fr) 1996-06-14 1997-05-23 Appareil d'alimentation d'un dispositif en liquide pressurise, et moteur/generateur correspondant refroidi par flux grande vitesse

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US66350496A 1996-06-14 1996-06-14
US08/663,504 1996-06-14

Publications (2)

Publication Number Publication Date
WO1997047884A2 true WO1997047884A2 (fr) 1997-12-18
WO1997047884A3 WO1997047884A3 (fr) 1998-05-14

Family

ID=24662096

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/008898 WO1997047884A2 (fr) 1996-06-14 1997-05-23 Appareil d'alimentation d'un dispositif en liquide pressurise, et moteur/generateur correspondant refroidi par flux grande vitesse

Country Status (3)

Country Link
EP (1) EP0904491A2 (fr)
JP (1) JP2001516414A (fr)
WO (1) WO1997047884A2 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000015457A1 (fr) * 1998-09-10 2000-03-23 Elfstroem Svein Moyens d'entrainement
NL1013472C2 (nl) * 1998-11-04 2001-03-26 Toyoda Automatic Loom Works Motor-aangedreven pompinrichting.
EP1211784A1 (fr) * 1999-08-31 2002-06-05 Ebara Corporation Bati de moteur, moteur utilisant ledit bati et motopompe
WO2002081913A2 (fr) * 2001-04-06 2002-10-17 Bosch Rexroth Ag Groupe motopompe hydraulique
EP1486675A1 (fr) * 2003-06-09 2004-12-15 Goodrich Control Systems Ltd Générateur électrique pour avion
FR2934431A1 (fr) * 2008-07-22 2010-01-29 Linde Material Handling Gmbh Dispositif d'entrainement electrohydraulique
WO2010050824A1 (fr) * 2008-10-27 2010-05-06 Framo Engineering As Machine électrique
CN103486024A (zh) * 2012-06-05 2014-01-01 哈米尔顿森德斯特兰德公司 利用超前的双齿轮和轴承端面切削部的流量和压力波动降低
WO2017055134A1 (fr) * 2015-10-02 2017-04-06 Robert Bosch Gmbh Unité d'entraînement et groupe comprenant un système de refroidissement
RU2802119C1 (ru) * 2022-12-28 2023-08-22 Публичное акционерное общество "Объединенная авиастроительная корпорация" (ПАО "ОАК") Автономная авиационная гидравлическая насосная станция

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2907283B1 (fr) * 2006-10-17 2013-04-19 Airbus France Dispositif et procede d'alimentation electrique d'au moins une machine a induction a bord d'un aeronef
CN111509940B (zh) * 2020-04-16 2021-06-01 重庆文理学院 一种低能耗永磁同步电机

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0093041A1 (fr) * 1982-04-23 1983-11-02 Regie Nationale Des Usines Renault Machine électrodynamique synchrone à aimants permanents et refroidie par un liquide
DE4120665A1 (de) * 1991-06-22 1992-12-24 Teves Gmbh Alfred Elektromotorisch angetriebene hydraulikpumpe
WO1993018303A1 (fr) * 1992-03-13 1993-09-16 Pneumo Abex Corporation Pompe entrainee par un moteur electrique immerge
EP0566788A1 (fr) * 1990-08-23 1993-10-27 Westinghouse Electric Corporation Unité de propulsion integrées pour véhicules nautiques
DE4222394C1 (de) * 1992-07-08 1993-12-09 Grundfos A S Bjerringbro Motorpumpe
EP0578390A1 (fr) * 1992-06-17 1994-01-12 Vickers Incorporated Appareil hydraulique entraîné par un moteur électrique intégré en ligne
EP0583994A1 (fr) * 1992-07-07 1994-02-23 High Speed Tech Oy Ltd. Machine électrique asynchrone avec rotor et stator
EP0661793A1 (fr) * 1993-12-28 1995-07-05 Ebara Corporation Assemblage de moteur-pompe
US5454697A (en) * 1993-03-24 1995-10-03 Aisan Kogyo Kabushiki Kaisha Electrically operated pump assembly with an externally installed control circuit
DE29609700U1 (de) * 1996-05-31 1996-08-22 Heilmeier & Weinlein Elektromotor

Family Cites Families (1)

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Publication number Priority date Publication date Assignee Title
JPH03289340A (ja) * 1990-03-31 1991-12-19 Toshiba Corp 電動機

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0093041A1 (fr) * 1982-04-23 1983-11-02 Regie Nationale Des Usines Renault Machine électrodynamique synchrone à aimants permanents et refroidie par un liquide
EP0566788A1 (fr) * 1990-08-23 1993-10-27 Westinghouse Electric Corporation Unité de propulsion integrées pour véhicules nautiques
DE4120665A1 (de) * 1991-06-22 1992-12-24 Teves Gmbh Alfred Elektromotorisch angetriebene hydraulikpumpe
WO1993018303A1 (fr) * 1992-03-13 1993-09-16 Pneumo Abex Corporation Pompe entrainee par un moteur electrique immerge
EP0578390A1 (fr) * 1992-06-17 1994-01-12 Vickers Incorporated Appareil hydraulique entraîné par un moteur électrique intégré en ligne
EP0583994A1 (fr) * 1992-07-07 1994-02-23 High Speed Tech Oy Ltd. Machine électrique asynchrone avec rotor et stator
DE4222394C1 (de) * 1992-07-08 1993-12-09 Grundfos A S Bjerringbro Motorpumpe
US5454697A (en) * 1993-03-24 1995-10-03 Aisan Kogyo Kabushiki Kaisha Electrically operated pump assembly with an externally installed control circuit
EP0661793A1 (fr) * 1993-12-28 1995-07-05 Ebara Corporation Assemblage de moteur-pompe
DE29609700U1 (de) * 1996-05-31 1996-08-22 Heilmeier & Weinlein Elektromotor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 016, no. 120 (E-1182), 26 March 1992 & JP 03 289340 A (TOSHIBA CORP), 19 December 1991, *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000015457A1 (fr) * 1998-09-10 2000-03-23 Elfstroem Svein Moyens d'entrainement
NL1013472C2 (nl) * 1998-11-04 2001-03-26 Toyoda Automatic Loom Works Motor-aangedreven pompinrichting.
EP1211784A1 (fr) * 1999-08-31 2002-06-05 Ebara Corporation Bati de moteur, moteur utilisant ledit bati et motopompe
EP1211784A4 (fr) * 1999-08-31 2003-05-28 Ebara Corp Bati de moteur, moteur utilisant ledit bati et motopompe
WO2002081913A2 (fr) * 2001-04-06 2002-10-17 Bosch Rexroth Ag Groupe motopompe hydraulique
WO2002081913A3 (fr) * 2001-04-06 2004-09-30 Bosch Rexroth Ag Groupe motopompe hydraulique
EP1486675A1 (fr) * 2003-06-09 2004-12-15 Goodrich Control Systems Ltd Générateur électrique pour avion
FR2934431A1 (fr) * 2008-07-22 2010-01-29 Linde Material Handling Gmbh Dispositif d'entrainement electrohydraulique
WO2010050824A1 (fr) * 2008-10-27 2010-05-06 Framo Engineering As Machine électrique
CN103486024A (zh) * 2012-06-05 2014-01-01 哈米尔顿森德斯特兰德公司 利用超前的双齿轮和轴承端面切削部的流量和压力波动降低
CN103486024B (zh) * 2012-06-05 2017-04-12 哈米尔顿森德斯特兰德公司 主齿轮泵、伺服齿轮泵及使用二者的飞行器
WO2017055134A1 (fr) * 2015-10-02 2017-04-06 Robert Bosch Gmbh Unité d'entraînement et groupe comprenant un système de refroidissement
CN108141110A (zh) * 2015-10-02 2018-06-08 罗伯特·博世有限公司 驱动单元和具有冷却器的机组
CN108141110B (zh) * 2015-10-02 2022-04-19 罗伯特·博世有限公司 驱动单元和具有冷却器的机组
RU2802119C1 (ru) * 2022-12-28 2023-08-22 Публичное акционерное общество "Объединенная авиастроительная корпорация" (ПАО "ОАК") Автономная авиационная гидравлическая насосная станция

Also Published As

Publication number Publication date
EP0904491A2 (fr) 1999-03-31
WO1997047884A3 (fr) 1998-05-14
JP2001516414A (ja) 2001-09-25

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